Hi all,I tried very simple program on native Plan9:#include <u.h>#include <libc.h>voidmain(int, char**){int afd, lfd;char adir[NETPATHLEN], ldir[NETPATHLEN];afd = announce("tcp!*!20540", adir);if (afd < 0)sysfatal("listen: %r");lfd = listen(adir, ldir);if (lfd < 0)sysfatal("listen: %r");if (reject(lfd, ldir, "unauthorized") < 0)sysfatal("reject: %r");close(lfd);close(afd);exits(nil);}I dicovered that the funtion 'reject' fails:term% 8.outreject: unknown control requestIn 'ratrace' listing I can really see the 'reject' function failure:348 8.out Open 33a7 0xdfffe9bc/"/net/cs" 0x2 = 3 "" 1412926762174586973 1412926762174841785348 8.out Pwrite 5577 3 0x7880/"tcp!*!20540" 11 -1 = 11 "" 1412926762186976342 1412926762187086984348 8.out Seek 3391 0x7ab8 3 0x0 0 = 0 "" 1412926762198637769 1412926762198646989348 8.out Pread 557f 3 0xdfffe9bc 255 -1 0xdfffe9bc/"/net/tcp/clone.20540" 255 -1 = 20 "" 1412926762200546351 1412926762200619275348 8.out Close 1225 3 = 0 "" 1412926762221784602 1412926762221865069348 8.out Open 33a7 0xdfffebe0/"/net/tcp/clone" 0x2 = 3 "" 1412926762223717492 1412926762223849089348 8.out Pread 557f 3 0xdfffede9 246 -1 0xdfffede9/"4" 246 -1 = 1 "" 1412926762235853725 1412926762235866298348 8.out Pwrite 5577 3 0xdfffece0/"announce.20540" 14 -1 = 14 "" 1412926762247454802 1412926762247479948348 8.out Open 33a7 0xdfffede0/"/net/tcp/4/listen" 0x2 = 4 "" 1412926762259028218 1412926771821372908348 8.out Pread 557f 4 0xdfffede9 246 -1 0xdfffede9/"6" 246 -1 = 1 "" 1412926771844967723 1412926771844984487348 8.out Pwrite 5577 4 0xdfffedec/"reject.6.unauthorized" 21 -1 = -1 unknown control request 1412926771854330421 1412926771854347185348 8.out Errstr 5587 0xdfffe914 128"" 128 = 0 1412926771871626615 1412926771871632483348 8.out Errstr 5587 0xdfffe914 128"" 128 = 0 unknown control request 1412926771887234674 1412926771887239703348 8.out Pwrite 5577 2 0xdfffe980/"reject:.unknown.control.request." 32 -1reject: unknown control request= 32 "" 1412926771918100040 1412926771932457957348 8.out Open 33a7 0x7538/"#c/pid" 0x0 = 5 "" 1412926771947976329 1412926771948085295348 8.out Pread 557f 5 0xdfffeaa0 20 -1 0xdfffeaa0/"........348." 20 -1 = 12 "" 1412926771963591547 1412926771963607473348 8.out Close 1225 5 = 0 "" 1412926771979115786 1412926771979128359348 8.out Exits 122d 0xdfffeadc/"reject: unknown control request"Do you have any explanation?Did I make some bug in the program?Thanks in advance.Pavel